We are excited to add localized knot names in Spanish to compliment the Dutch, French, German, Italian, Korean, and Russian languages in the last release. We believe the translations to be accurate but sometimes the English name has no direct equivalent in the target language. If you think a translation is wrong, can be improved or if there is another common name or synonym for the knot, please let us know or contribute to our crowd sourced translation project at http://crowdin.net/project/knots3d. In addition to the above, other languages are partially complete, e.g. Japanese, and we hope to include them soon. The next phase of the project is to localize the category names and navigation buttons.